There are some requirements you must follow to entering/leaving the country. Here’s a thread of the requirements:
You’ll have to present a negative test result before entering Honduras, which you’ll have to perform in your depart city. If you are coming from the USA, you’ll have to perform a PCR/Antigen before leaving Honduras. Roatan has hospitals and clinics. Click on the following link to get to know the medical services on the island Medical Services — ROATAN.
It will help you once you are on the island.